JP2696052B2 - Hook and method of manufacturing the hook - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook for locking an opening or the like of clothes and a method of manufacturing the hook.

[0002]

2. Description of the Related Art Conventionally, in order to be able to fasten a hook hook hook to a cloth or the like of clothing without using complicated means such as sewing, a locking claw is protruded from the back of the hook. Then, the locking claws are inserted into the cloth and locked.

FIG. 8 is a perspective view showing an example of such a hook. As shown in the figure, the hook hook includes a male hook 10 fixed to the first cloth C1 and a female hook 20 fixed to the second cloth C2. Further, the male hook 10 is provided with a pair of locking claws 1 on upper and lower edges thereof.
4 includes a clasp main body 12 having a projection, and a clasp mounting portion 16 to which the clasp main body 12 is locked by bending and pressing the locking claw 14. The clasp main body 12 and the clasp mounting portion 16 are joined by being pressed and bent together with the locking claws 14 of the clasp main body 12 penetrating the first fabric C1. The clasp main body 10 and the clasp mounting portion 16 are connected to each other, and one side (the left side in FIG. 8) is formed so as to be separated from each other by a predetermined distance. It has become.

[0004] On the other hand, the female hook 20 is bent into a C-shape, and a receiving body 26 having a pair of locking claws 24 projecting from upper and lower ends thereof. And a receiving attachment portion 22 to which the receiving main body 26 is locked. The receiver main body 26 and the receiver mounting part 22 are connected to the receiver main body 2.
The six locking claws 24 are connected by being pushed and bent together while penetrating the second cloth C2.

The first cloth C1 and the second cloth C2 are moved from the state shown in FIG. 8 to the right side of the female hook 20 by temporarily moving the male hook 10 to the female hook 20. The parts are connected to each other so as to be sandwiched in the gap between the receiving body 26 and the second cloth C2.

As described above, the male hook 10 and the female hook 20 use the locking claws 14, 24, the clasp mounting portion 16, and the metal receiving mounting portion 22 to perform the first fabric C1 without performing the sewing operation. And the second cloth C2,
This is convenient for simplifying the mounting operation. In particular, recently, the clasp mounting portion 16 or the clasp mounting portion 22 is stacked on a cartridge or the like and stored in large numbers, and the clasp main body 12 or the clasp main body 26 is automatically transferred one by one to the cloth or the like. There is also known an automatic fastening machine in which the hook hooks are fastened to the cloth or the like by automatically pressing and joining the hooks.

[0007]

In the above-described conventional hook hook, when the male hook 10 is fastened to the first cloth C1, first, the clasp main body 12 and the clasp mounting portion 16 are connected to each other. When the clasp main body 12 is pressed in the direction of the clasp attachment portion 16, the locking claws 14 of the clasp main body 12 penetrate the first fabric C <b> 1 and pass through the first fabric C <b> 1. The tips of the locking claws 14 are bent and pushed in directions approaching each other.

When the locking claws 14 of the clasp main body 12 are pressed against the first cloth C1, the clasp mounting portions 16 are provided on the back side of the first cloth C1 with which the tips of the locking claws 14 abut. Of the locking claw 14 in particular via the first cloth C1.
When the clasp main body 12 is pressed by the locking claw 14 to break through the first cloth C1, the locking claw 14 of the first cloth C1 is locked. The bent portion is pulled in the direction of the clasp mounting portion 16, and wrinkles appear to be hung on the first fabric C <b> 1.

Furthermore, since the penetrating portion of the locking claw 14 is bent inward after the locking claw 14 has penetrated the first cloth C1, the first cloth C1 of that part is the tip of the locking claw 14. Is pulled in the bent direction, and eventually a hanging portion X is formed in this portion, which protrudes in the bending and pushing direction of the locking claw 14.

When the locking claws 14 of the clasp main body 12 penetrate the first cloth C1, the yarn constituting the first cloth C1 is drawn together with the above-described movement of the locking claws 14. A so-called stringing phenomenon may occur.

Such inconvenience also occurs when the female hook 20 is fixed to the second cloth C2 in the same manner as in the case of the male hook 10 described above, and such a hanging portion X and a stringing phenomenon occur. When this occurs, there has been a problem that the appearance is extremely unsightly and the commercial value is greatly reduced.

Further, a male hook 1 using an automatic fastening machine is provided.
When the female hooks 20 or the female hooks 20 are fastened to the cloth or the like, a large number of clasp mounting portions 16 or receiving metal mounting portions 22 are stacked and stored in a cylindrical cartridge. If it is bad, the clasp mounting portion 16 or the receiving metal mounting portion 22 becomes clogged in the cartridge or the like, which causes a problem that a predetermined unloading operation in the automatic fastening machine is not performed. That is, in such a case, the clasp main body 1
2 or only the receiving body 26 is the first and second cloth C1,
A situation in which it is attached to C2 is caused, and if such a situation occurs frequently, the yield rate is increased, which is extremely inconvenient. Therefore, when storing the clasp mounting portions 16 or the clasp mounting portions 22 in the cartridge, a large number of clasp mounting portions 16 or the clasp mounting portions 22 can be stored in a simpler and more suitable manner. Is more preferred.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and a hook and a hook which do not cause hanging or stringing of a cloth or the like upon fastening and which can be easily stored in a cartridge more easily. It is intended to provide.

[0014]

The invention according to claim 1 is
In a hook hook comprising a male hook having a hook and a female hook engaged with the hook, the male hook comprises a clasp main body and a clasp mounting part, Has a plurality of locking claws penetrating through the cloth or the like of the garment, and the clasp mounting portion is provided with an engaging portion into which the locking claw is inserted and fixed. Before the engagement, a collision portion where the tip of the locking claw collides is provided, and this collision portion is rolled to be thinner than the surroundings, and a linear body is inserted when a plurality of clasp mounting portions are stacked and bundled. Through holes are provided.

According to a second aspect of the present invention, there is provided a hook hook comprising a male hook having a hook portion and a female hook engaged with the hook portion, wherein the female hook is connected to the receiving body. A plurality of locking claws penetrating through the cloth of the garment and the like are protrudingly provided on the receiving body, and an engaging portion into which the locking claws are inserted and fixed is formed on the receiving metal mounting portion. The engaging portion is provided with a collision portion where the distal end portion of the locking claw collides before the engagement, and the collision portion is rolled to be thinner than its surroundings, and the metal receiving mounting portion is formed. A through hole is provided for inserting a linear body when a plurality of bundles are stacked.

According to a third aspect of the present invention, in the method for manufacturing the clasp mounting portion of the male hook according to the first aspect, a concave portion whose bottom surface is thinly rolled is formed in a metal plate material having a predetermined thickness. Performing a first pressing step and a second pressing step of pressing the periphery of the concave portion to shape the rear surface of the metal plate material into a flat surface or a state close to a flat surface by pressing the periphery of the concave portion while maintaining the thickness of the bottom surface of the concave portion. Thereby, a thin portion as the collision portion is formed in the metal plate material.

According to a fourth aspect of the present invention, in the method of manufacturing the female hook hook receiving portion according to the second aspect, a concave portion whose bottom surface is thinly rolled is formed in a metal plate material having a predetermined thickness. Performing a first pressing step and a second pressing step of pressing the periphery of the concave portion to shape the rear surface of the metal plate material into a flat surface or a state close to a flat surface by pressing the periphery of the concave portion while maintaining the thickness of the bottom surface of the concave portion. Thereby, a thin portion as the collision portion is formed in the metal plate material.

[0018]

According to the hook hook of the first aspect, the engaging portion of the clasp mounting portion into which the locking claw provided on the clasp main body of the male hook hook is inserted and fixed is thinner than the surroundings. When the clasp main body is fastened to the clasp attachment portion, first, the locking claw is brought into contact with the collision portion via a cloth or the like. Then, when the clasp main body is pressed in the direction of the clasp mounting portion, a small hole is pierced in the cloth or the like in a state where the tip of the locking claw is in contact with the collision portion, and then the cloth or the like is penetrated. The thin rolled collision portion is crushed or crushed and penetrates the cloth or the like, and thereafter, the tips of the locking claws are bent and locked to each other. In this case, the material is once sandwiched between the locking claw and the collision portion, and then the locking claw pierces a small hole in the material or the like while abutting on the collision portion, so that the collision portion serves as a metal. Therefore, even if the tips of the locking claws are bent so as to approach each other, the cloth or the like is not drawn in the direction of the engaging portion. Therefore, the occurrence of the hanging or stringing phenomenon occurring in the cloth or the like is prevented.

Further, since a through hole is formed in the engaging portion of the clasp attachment portion, when the clasp attachment portions are stacked and bundled,
By inserting a linear body such as a thread through this through-hole and stacking it, a large number of clasp mounting portions can be easily stacked. Therefore, even when a large number of clasp attachment portions are stored in the cartridge of the automatic fastening machine, after the clasp attachment portions into which the thread or the like is inserted and bundled as described above are integrally stored in the cartridge, the thread or the like is removed. A large number of clasp attachment portions can be suitably stored in the cartridge simply by pulling out. Accordingly, it is possible to prevent a storage failure such as the retainer mounting portion being stored in an inverted state in the cartridge, and to improve the efficiency of storing the retainer mounting portion in the cartridge.

According to the hook of the present invention, the engaging portion of the receiving hook mounting portion into which the locking claw provided on the receiving hook main body of the female hook is inserted and fastened is thinner than the periphery. When the metal receiving body is fixed to the metal receiving mounting portion, first, the locking claw is brought into contact with the collision portion via a cloth or the like. Then, when the receiving body is pressed in the direction of the receiving mounting portion, the small hole is pierced in the cloth or the like in a state where the tip of the locking claw is in contact with the collision portion, and then the cloth or the like is turned around. The thin rolled collision portion is crushed or crushed and penetrates the cloth or the like, and thereafter, the tips of the locking claws are bent and locked to each other. In this case, the material is once sandwiched between the locking claw and the collision portion, and then the locking claw pierces a small hole in the material or the like while abutting on the collision portion, so that the collision portion serves as a metal. Therefore, even if the tips of the locking claws are bent so as to approach each other, the cloth or the like is not drawn in the direction of the engaging portion. Therefore, the occurrence of the hanging or stringing phenomenon occurring in the cloth or the like is prevented.

Further, since a through hole is formed in the engaging portion of the metal receiving attachment portion, when the metal receiving mounting portions are stacked and bundled,
By overlapping a linear body such as a thread through the through hole, a large number of receiving attachment portions can be easily overlapped. Therefore, even when a large number of receiving attachment portions are stored in the cartridge of the automatic fastening machine, after the receiving attachment portion in which the thread or the like is inserted and bundled as described above is integrally stored in the cartridge, the thread or the like is removed. By simply pulling out the cartridge, a large number of receiving attachment portions can be housed in the cartridge. Therefore, it is possible to prevent a storage failure such as the receiving fitting portion being stored in an inverted state in the cartridge, and to improve the efficiency of storing the receiving fitting portion in the cartridge.

According to the hook hook manufacturing method of the third aspect, when the clasp mounting portion of the male hook is formed by press working, first, in a first pressing step, a metal material surface having a predetermined thickness is formed. A recess is formed. At this time, the bottom surface of the concave portion is in a state of being rolled thin by press working.
Then, in the second pressing step, by pressing the periphery of the concave portion while maintaining the thickness of the bottom surface of the concave portion, the back surface of the metal plate material is shaped into a flat surface or a state close to a flat surface. In other words, when a concave portion is formed in the first pressing step in order to shape the thin portion as the collision portion, a bulge (step) occurs on the back surface of the metal material, and the bulged portion moves between subsequent processes. In this case, it may cause a problem such as a shift in the transfer pitch of the metal plate material or a skew of the metal plate material by engaging with the transfer surface. Therefore, by shaping the back surface of the metal plate material into a flat surface or a state close to a flat surface by the second press working, the above-described disadvantage due to the provision of the thin portion in the metal plate material is effectively prevented. be able to.

According to the hook hook manufacturing method of the present invention, when the receiving portion of the female hook is formed by press working, first, in the first pressing step, a metal material surface of a predetermined thickness is formed. A recess is formed. At this time, the bottom surface of the concave portion is in a state of being rolled thin by press working.
Then, in the second pressing step, by pressing the periphery of the concave portion while maintaining the thickness of the bottom surface of the concave portion, the back surface of the metal plate material is shaped into a flat surface or a state close to a flat surface. In other words, when a concave portion is formed in the first pressing step in order to shape the thin portion as the collision portion, a bulge (step) occurs on the back surface of the metal material, and the bulged portion moves between subsequent processes. In this case, it may cause a problem such as a shift in the transfer pitch of the metal plate material or a skew of the metal plate material by engaging with the transfer surface. Therefore, by shaping the back surface of the metal plate material into a flat surface or a state close to a flat surface by the second press working, the above-described disadvantage due to the provision of the thin portion in the metal plate material is effectively prevented. be able to.

[0024]

FIG. 1 is a perspective view showing an example of a hook hook according to the present invention. As shown in the figure, the hook hook of the present embodiment includes a male hook 10 fixed to the first cloth C1 and the like, and a female hook 20 fixed to the second cloth C2 and the like. I have. The male hook 10 includes a clasp main body 12 having locking claws 14 protruding from upper and lower edges on the right side, and a clasp mounting portion for locking the clasp main body 12 by bending and pressing the locking claws 14. 16. The locking claw 14 is tapered and projects in the direction of the clasp mounting portion 16.

An engaging portion 11 is provided at a portion of the clasp mounting portion 16 corresponding to the locking claw 14. The engaging portion 11 is located at a position where the tip of the locking claw 14 comes into contact with the surrounding portion. A pair of upper and lower rolling portions 18 which are also rolled thin are provided. The rolling section 18 is formed by being pressed by a press (not shown). In the embodiment, the thickness of the clasp mounting portion 16 is 0.5 mm, and the thickness of the rolling portion 18 is about 0.15 mm with respect to this thickness. Further, through holes 15 are provided at both left and right end portions of each of the rolled portions 18, respectively. In the embodiment, the diameter of the through holes 15 is 1.5 mm.

The clasp body 12 and the clasp mounting portion 16 are
As shown in FIG. 2, the locking claws 14 of the clasp main body 12 penetrate the first cloth or the like C <b> 1 and protrude toward the clasp mounting portion 16 in a state of being guided by the rolling portion 18. The claws 14 are connected in a state where they are bent and pushed in a direction to approach each other. The clasp main body 12 and the clasp mounting portion 16 are coupled to each other, and the left side thereof is bent so as to be separated from each other at a fixed distance, and a hook portion 13 is formed at the tip of the clasp main body 12. ing.

On the other hand, the female hook hook 20 is bent into a C-shape, and a receiving main body 26 provided with locking claws 24 at the upper and lower ends thereof. And a metal receiving mounting portion 22 which is locked to the main body.

An engaging portion 21 similar to that provided on the clasp mounting portion 16 is provided on the upper and lower sides of the receiving metal mounting portion 22.
A pair of upper and lower rolling portions 28 are formed in this engaging portion, and through-holes 2 are formed at both left and right end portions of each rolling portion 28, respectively.
5 are drilled. Then, the receiving body 26 and the receiving mounting portion 22 are configured such that the locking claw 24 of the receiving body 26 has the second material C or the like.
2, and protrudes toward the metal receiving mounting portion 22 while being guided by the rolling portion 28, and is connected to each other by bending and pressing the locking claw 24 as shown in FIG. 2.

As described above, the hook hook of the present invention has the clasp mounting portion 16 and the clasp mounting portion 22, which receive and fix the clasp main body 12 and the clasp main body 26, respectively, and the rolling portions 18, 28, respectively. Are provided, the clasp main body 12 and the receiving main body 26 are
When fastening to the clasp attachment portion 16 and the clasp attachment portion 22 via the first fabric C1 and the second fabric C2, the locking claws 14 and 24 of the clasp main body 16 and the clasp main body 26 are moved to the second position. The first and second fabrics C1 and C2 and the like are first brought into contact with the rolled portions 18 and 28 of the clasp mounting portion 16 and the receiving metal mounting portion 22, and then pressed by a considerable force.

Then, the leading ends of the locking claws 14 and 24 are firstly moved in a state where the rolling portions 18 and 28 are used as receiving bases.
A small hole is formed in the second cloth C1 and C2. Furthermore, when the clasp main body 12 and the receiving main body 26 are strongly pressed, the rolling section 18,
28 is rolled thinner than its surroundings,
4 and 24 penetrate the first and second fabrics C1 and C2 in a state where the rolling sections 18 and 28 are crushed or crushed. In this case, the locking claws 14 and 24 are made of the first and second cloths C and the like.
As shown in FIG. 2, the leading ends of the locking claws 14 and 24 draw in the first and second cloths C1 and C2 together, as shown in FIG. As a result, the first and second fabrics C1 and C2 can be effectively prevented from hanging or stringing.

When the fastening of the male hook 10 to the fabric C1 or the female hook 20 to the fabric C2 is performed by an automatic fastening machine, the clasp mounting portion 16 and the receiving metal mounting portion are provided. It is necessary to stack the yarns 34 and 44 in the through holes 15 and 25, as shown in FIG. Since the metal mounting portion 16 and the metal receiving mounting portion 22 can be overlapped, when storing them in the cartridges 32 and 42, the clasp mounting portion 16 and the metal receiving mounting portion which are piled up by the yarns 34 and 44 are bundled. By inserting the portion 22 into each of the cartridges 32 and 42 as it is and then pulling out the threads 34 and 44, the clasp mounting portion 16 and the receiving metal mounting portion 22 can be easily stored in the cartridges 32 and 42.

In addition, the clasp mounting portion 16 is formed by the above method.
If the metal receiving attachment portion 22 is stored in the cartridges 32 and 42, the clasp mounting portion 16 and the metal receiving attachment portion 22 may be stored in the cartridge 32 or 42 in an inverted state, or may be stored in the opposite direction. Poor storage can be effectively prevented. Accordingly, a failure of the fastening machine, a failure of the clasp main body 12 and the clasp main body 26 due to a poor storage of the clasp mounting section 16 and the clasp mounting section 26 in the cartridges 32 and 42.
It is possible to effectively reduce the yield due to poor engagement with the.

Next, a method of manufacturing a hook hook according to the present invention will be described with reference to FIGS. In the following description, the method of manufacturing the hook mounting portion 22 to which the method for manufacturing the hook and hook of the present invention is applied will be described as an example.

FIG. 4 is a schematic structural view showing an example of a press for manufacturing the receiving fitting portion 22. As shown in FIG. In the figure, the press machine is composed of an upper die 50 and a lower die 52, and a predetermined press working is performed on a metal sheet material S which is moved in a feed direction (the direction of the arrow in FIG. 4) by a transfer device (not shown). Is applied to manufacture the receiving attachment portion 22.

The press working of the press machine comprises a first step to an eighth step. Therefore, the upper die 50 is composed of a metal plate 52 for performing the first step to a metal mold 59 for performing the eighth step. In the feed direction (hereinafter, abbreviated as the feed direction).

On the other hand, the lower mold 52 is also connected to the upper mold 50.
52a to 59a corresponding to the respective dies 52 to 59
Have a configuration arranged in the feed direction similarly to the upper mold 50, and particularly, the mold 52a is
54 are arranged with a dimension in the feed direction so as to be common to 54.

Hereinafter, press working (first to eighth steps) in this press machine will be described in detail. In the description, the description will be made using the dimensions of the embodiment level at key points.

First, a predetermined thickness (0.5 mm in the embodiment)
When the metal sheet material S is supplied to the press machine, in the first step, the metal sheet material S is supplied to the mold 52 as shown in FIG.
And a mold 52a.

The mold 52 is provided with four tip projections 52b projecting at predetermined intervals in a direction (hereinafter, referred to as a width direction) orthogonal to the feeding direction (the direction of the arrow in FIG. 5). 5
By pressing the metal plate material S with the metal mold 2 and the flat mold 52a, the surface of the metal plate material S has four concave portions, that is, in the completed metal receiving main body 22, as shown in FIG. A rolling section 28 is formed. In the embodiment, the shape of the rolled portion 28 has a length in the feed direction of 3 mm and a length in the width direction of 1. mm.
It is a 6 mm rectangle, and the bottom surface of each rolling section 28 is rolled to 0.2 mm. Further, at this time, a bulging portion 60 is formed on the back surface of the metal sheet material S as shown in FIG.

In the second step, the metal sheet material S is
As shown in (b), it is pressed by the mold 53 and the mold 52a.

The mold 53 is provided with four projecting projections 53b in the same arrangement as the projecting projections 52b of the mold 52, and these projections 53b have a small dimension in the width direction. Is formed smaller than the tip convex portion 52b (1.4 mm in the embodiment). That is, in the second step, each of the rolled portions 28 is pressed again by these tip convex portions 53b, whereby the thickness of the rolled portion 28 is reduced to 0.2.
mm to 0.15 mm.

In the third step, the metal sheet material S is
Pressing is performed by the mold 54 and the mold 52a as shown in FIG. The metal mold 54 is provided with a middle convex part 54c, and a tip convex part 54b is protruded from the middle convex part 54c. The middle convex portion 54c is provided so wide that the dimension in the feeding direction can press the periphery of the rolled portion 28 formed on the metal plate material S, and is protruded across the width direction of the metal plate material S. . On the other hand, the four tip projections 54b are provided in the same arrangement as the tip projections 53b of the mold 53, and have a slightly smaller dimension in the width direction than the tip projections 53b of the mold 53 (see the embodiment). 1.2 mm).

That is, the metal sheet material S in the third step
At the time of pressing, the metal sheet material is pressed so that the periphery of the rolling portion 28 is pressed by the middle-stage convex portion 54c while the tip convex portions 54b are interposed in the rolling portion 28, whereby the bulging portion 60 disappears. The S back surface is shaped into a flat surface. That is, when the periphery of the rolling portion 28 is simply pressed to flatten the back surface of the metal sheet material S, the material around the rolling portion 28 swells into the rolling portion 28 at the time of pressing, and the thickness of the rolling portion 28 is reduced. Since it changes, the middle convex 54c presses the periphery thereof while the convex 54b of the tip 54 of the mold 54 is interposed in the rolling portion 28 as described above.
As shown in FIGS. 5A and 7A, the rear surface of the metal sheet material S is shaped into a flat surface while maintaining the thickness and the like of the rolled portion 28.

In the fourth step, the metal plate material S is pressed by the mold 55 and the mold 55a.
As shown in (c), pitch cutting is performed on the width direction end of the metal sheet material S. That is, the notch 64 for setting the transport pitch of the metal material S in the subsequent steps is formed.

In the fifth step, the metal sheet material S is pressed by the metal mold 56 and the metal mold 56a.
As shown in (d), the outer die is removed, and the outer die of the metal receiving attachment portion 22 connected in the width direction by the connecting piece 66 is roughly formed.

In the sixth step, the metal plate material S is pressed by the mold 57 and the mold 57a, and through holes 25 are formed at both ends of each recess 62 as shown in FIG.

In the seventh step, the metal plate material S is pressed by the mold 58 and the mold 58a, and
Is bent as shown in FIG. 6 (f), whereby the metal receiving mounting portion 2 is connected in the width direction by the connecting piece 66.
2 are formed with locking portions 21 respectively.

In the eighth step, the metal plate material S is pressed by the mold 59 and the mold 59a, and
6 is punched downward, whereby the metal receiving mounting portion 22 is completed.

As described above, the above-mentioned receiving attachment portion 22
According to the manufacturing method described above, after the rolled portion 28 is formed on the metal plate material S, the metal plate material S
The rear surface of the metal plate material S is shaped into a flat surface so that the bulging portion 60 formed on the back surface of the metal plate material S disappears. Of the metal sheet material S, or a conveyance failure such as skew. Therefore, the receiving attachment portion 22 caused by the poor conveyance of the metal plate material S
Can effectively prevent manufacturing defects.

As described above, when the rear surface of the metal plate material S is shaped into a flat surface, the tip convex portion 54b of the mold 54 is also used.
Is interposed in the rolling section 28 to maintain the thickness and the like of the rolling section 28 and press the periphery thereof by the middle mold 54c, so that the shape of the rolling section 28 is deformed or Does not change. Therefore, it is possible to form the rolled portion 28 that can function favorably in the completed receiver mounting portion 22.

In the above embodiment, the method of manufacturing the catch mounting portion 22 of the female hook 10 has been described, but the manufacturing of the clasp mounting portion 16 of the male hook 10 is also performed in the same manner.
When forming the rolling portion 18 of the clasp mounting portion 16, the rolling portion 1
By eliminating the bulging portion formed on the back surface of the metal plate material with the formation of 8 and making the back surface of the metal plate material flat, it is possible to effectively prevent poor transport of the metal plate material due to the bulging portion. Meanwhile, the clasp mounting portion 16 can be manufactured.

[0052]

As described above, the hook hook of the present invention is provided with the engaging portions provided on the clasp mounting portion and the receiving metal mounting portion.
When a rolled part that is rolled to be thinner than the surroundings is provided, and the clasp main body and the clasp main body are fastened to clothing, etc. A state in which the rolled part is crushed or crushed after being abutted against the above-mentioned rolled part of the mounting part and the receiving part mounting part, piercing the cloth etc. by piercing a small hole in the cloth or the like with the rolled part as a cradle. In this case, the doughs and the like are penetrated to bend the tips of the locking claws inward to each other so that the doughs and the like are not pulled in the direction of the engaging portion, and therefore, have occurred in the doughs and the like. The occurrence of the hanging or stringing phenomenon is effectively prevented.

Since the through hole is provided in the engaging portion of the clasp mounting portion and the receiving clasp mounting portion, when the clasp mounting portion or the clasp mounting portion is stacked and bundled, the through hole is formed. By overlapping a linear body such as a thread through the hole, a large number of clasp mounting portions and receiving metal mounting portions can be easily bundled. Therefore, when storing a large number of clasp mounting portions and receiving clasp mounting portions in the cartridge of the automatic fastening machine, the clasp mounting portion and the clasp mounting portion in which the thread or the like is inserted and bundled as described above are integrated. After being stored in the cartridge, a large number of clasp mounting portions and receiving clasp mounting portions can be suitably stored in the cartridge simply by pulling out the thread or the like. In addition, it is possible to prevent a storage failure such as being stored in an inverted state inside the storage device, and it is possible to improve the efficiency of storing the clasp mounting portion and the receiving metal mounting portion in the cartridge.

Further, according to the hook hook manufacturing method of the present invention, when the clasp mounting portion and the receiving metal mounting portion are formed by press working, first, in the first pressing step, a metal material surface having a predetermined thickness is formed. After the recess is formed, in the second pressing step, the periphery of the recess is pressed while maintaining the thickness of the bottom of the recess, thereby shaping the back surface of the metal plate material into a flat surface or a state close to a flat surface. As a result, the bulge (step) generated on the back surface of the metal sheet material due to the formation of the recess in the first pressing step engages with the conveying surface in the subsequent inter-process movement, and conveys the metal sheet material. There will be no inconvenience such as deviation of pitch or skew. Therefore, it is possible to effectively prevent poor conveyance of the metal sheet material during manufacturing.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of a hook and hook of the present invention.

FIG. 2 is a perspective view showing a state where the hooks and hooks shown in FIG. 1 are fixed to a cloth or the like.

FIG. 3 is a perspective view showing a state in which the clasp mounting portion and the receiving metal mounting portion are housed in a cartridge of the automatic fastening machine.

FIG. 4 is a schematic view showing a press machine.

FIG. 5A is a perspective view showing a metal plate material after a first step in press working, and FIG.
It is a perspective view which shows the metal plate material after a process, (c) The perspective view which shows the metal plate material after a 4th process in press working, (d) The perspective view which shows the metal plate material after a 5th process in press working. .

FIG. 6E is a perspective view showing a metal sheet material after a sixth step in the press working, FIG. 6F is a perspective view showing a metal sheet material after the seventh step in the press working, and FIG. It is a perspective view which shows the metal plate material after 8 processes.

7A is a cross-sectional view illustrating a metal sheet material in a first step in press working, FIG. 7B is a cross-sectional view illustrating a metal sheet material in a second step in press working, and FIG. It is sectional drawing which shows the metal plate material of two processes.

FIG. 8 is an exploded perspective view showing an example of a conventional hook hook.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Male hook 11 and 21 Engagement part 12 Retainer body 13 Hook part 14 and 24 Locking claw 15 and 28 Through hole 16 Retainer attachment part 18 and 28 Rolling part 20 Female hook 22 Reception attachment part 26 Reception Body

Claims (4)

(57) [Claims] 1. A hook comprising a male hook having a hook and a female hook engaged with the hook, wherein the male hook comprises a clasp main body and a clasp mounting portion. A plurality of locking claws are provided on the clasp main body so as to penetrate the cloth or the like of the garment, and the clasp mounting portion is provided with an engaging portion into which the locking claw is inserted and fixed. The portion is provided with a collision portion where the tip of the locking claw collides before engagement, and this collision portion is rolled to be thinner than its surroundings, and when a plurality of clasp mounting portions are stacked and bundled. A hook hook provided with a through hole for inserting a linear body. 2. A hook comprising a male hook having a hook portion and a female hook engaged with the hook portion, wherein the female hook is formed by a receiving main body and a receiving mounting portion. A plurality of locking claws penetrating the cloth or the like of the garment project from the receiving body, and an engaging portion into which the locking claw is inserted and fixed is provided on the receiving mounting portion. The portion is provided with a collision portion where the tip portion of the locking claw collides before engagement, and this collision portion is rolled to be thinner than its surroundings, and when a plurality of metal receiving mounting portions are stacked and bundled, A hook hook provided with a through hole for inserting a linear body. 3. A method of manufacturing a clasp mounting portion for a male hook according to claim 1, wherein a first pressing step of forming a concave portion whose bottom surface is thinly rolled in a metal plate material having a predetermined thickness; Pressing the periphery of the concave portion while maintaining the thickness of the bottom surface of the concave portion to shape the rear surface of the metal plate material into a flat surface or a state close to a flat surface, thereby performing a second pressing step. Forming a thin portion as the collision portion on the hook. 4. A method of manufacturing a female hook receiving portion for a female hook according to claim 2, wherein a first pressing step of forming a concave portion whose bottom surface is thinly rolled in a metal plate material having a predetermined thickness. Pressing the periphery of the concave portion while maintaining the thickness of the bottom surface of the concave portion to shape the rear surface of the metal plate material into a flat surface or a state close to a flat surface, thereby performing a second pressing step. Forming a thin portion as the collision portion on the hook.